Computer-Based Simulation and Scaled Laboratory Bench System for the Teaching and Training of Engineers on the Control of Doubly Fed Induction Wind Generators

Abstract

Abstract-Among the existing renewable sources, wind energy is reaching production rates that are becoming important on the worldwide energy scene. Since the control of these wind generators is a very technical discipline, practical teaching methodologies are of special relevance. Paradoxically, in the past, the training of engineers specializing in this area has lacked the practical component represented by field tests, due to the difficulty of access to this kind of installation. This paper presents a system designed for use both in teaching and training procedures for control strategies for wind generators with doubly fed induction generator (DFIG) technology. The system includes two phases or levels of use: the first being a simulation phase based on computer models, and the second, an advanced level which allows for the conducting of tests on a laboratory scaled workbench composed of a wind turbine emulator coupled to an electric generator. With this equipment, the effectiveness of the wind generator regulation systems can be analyzed from the point of view of the maximum power point tracking control strategy, as well as from that of the contribution produced by the wind generator to the control of the operation of the electric grid to which it is connected.

Renewable energy emulation concepts for microgrids

“…[25], [26], [27], [28], [29], [30], [31], [32], [33] Wind power - [34], [35], [36], [37], [38], [39], [40], [41], [42], [43], [44], [45], [46], [47], [48], [49], [50], [51], [52], [53], [54], [55], [56], [57] [24]…”

Low Voltage Ride-through in DFIG Wind Generators by Controlling the Rotor Current without Crowbars

“…In order to test the viability and physical implementation of the proposed strategy, experiments have been carried out on a scale WTGS prototype developed by the ETSII-UPM's Electric Machines Laboratory [17], which specifications are shown in Table 2. The tests used the modified strategy, that is, imposing a fixed rotor current space phasor during the voltage sag.…”

“…This is coherent with the fact that only reactive power is delivered to the grid. Further detail on the relationships between ξ S , V grid , I S , P s and Q s , and the model which has been used, can be found in reference [17]. The value and position of I S are determined by that of the ξ S phasor.…”

Bang-Bang Control Technique Based Lab Scaled Steam Turbine-Generator Set Test Bench

“…Now scientists prefer those sources of energy that are renewable and environmental friendly as well. So paradigm shift is being observed as far as prime mover of electricity is being concerned [1,2].…”

“…Now scientists prefer those sources of energy that are renewable and environmental friendly as well. So paradigm shift is being observed as far as prime mover of electricity is being concerned [1,2].Out of the many sources of renewable energy such as water, wind, and solar, steam energy is still considered popular source of electricity production globally because of less cost [3]. …”